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Replacement Tyre Monitor (RTM) and Visual Alignment Indicator (VAI)


Replacement Tyre Monitor (RTM)

  • The RTM (Replacement Tyre Monitor) provides the user with a warning when the tyre is worn and has to be replaced. The inscription “Replacement Tyre Monitor” shows three times on the circumferential rib of the new tyre. Just before the tread reaches the minimum tread depth indicated by the TWI (Tread Wear Indicator bars), the inscription will change to “Replace Tyre”.

Visual Alignment Indicator (VAI)

  • The VAI (Visual Alignment Indicator) allows the user to check wheel misalignment to avoid irregular wear of the tyres. The VAI is represented three times in the circumference of the tyre by two additional sipes (1.6 mm  tread depth) on the opposite shoulder blocks of the tyre. If the sipes of the VAI wear off differently (one side more than the other for example), it means that there is potential misalignment of the wheels.
Since 1915.
General Tire. A brand of Continental.

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